Crystallization Behavior of PET Materials

Bilal Demirel, Ali Yaraş, Hüseyin Elçiçek

Öz


Polyethylene terephthalate, commonly coded as PET, PETE, is a thermoplastic polymer resin of the polyesters and is used in liquid containers, drinks, food and synthetic fibres.  Depending on its processing and thermal conditions, PET may exist both as amorphous and as semi-crystalline.  PET may appear opaque, white and transparent depending on its crystalline and amorphous structure.  Its crystallinity and consequently its physical and mechanical properties are highly dependent on processing conditions like processing temperature, cooling rate, stretching process etc.  In this study, it was tried to summarize all about PET crystallization by referring to all studies carried out before.  Crystallization is very significant properties affecting all mechanical and physical properties of PET just as for all kind of polymers.  As a result, this subject has taken in very good interest so far and it is believed that this interest will go on increasingly.


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